Spanner wrench



FIG. 1 is a front perspective view of a spanner wrench, showing my design;

FIG. 2 is a reduced top plan view of the spanner wrench;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a left side elevation view thereof; and,

FIG. 6 is a right side elevation view thereof.

The broken line showing in FIG. 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a spanner wrench, as shown and described. 